Research Papers: Fundamental Issues and Canonical Flows

Models for Vortex-Induced Vibration of Cylinders Based on Measured Forces

[+] Author and Article Information
Robert D. Blevins

 Goodrich, 850 Lagoon Drive, Chula Vista, CA 91910

J. Fluids Eng 131(10), 101203 (Sep 30, 2009) (9 pages) doi:10.1115/1.3222906 History: Received May 20, 2008; Revised July 26, 2009; Published September 30, 2009

This paper develops experimentally based nonlinear models for the vortex shedding forces on oscillating cylinders. The lift in-phase and out-of-phase with cylinder motion and mean drag are determined from experiments with cylinder amplitudes from 0.05 cm to 1.5 cm, and reduced velocities between 2 and 12. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant, and time history vortex-induced vibration. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant and time history vortex-induced vibration.

Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 1

Vortex street behind a stationary cylinder (1)

Grahic Jump Location
Figure 2

Maximum transverse amplitude of lightly damped elastically supported cylinders, Strouhal number, and drag coefficient of stationary cylinders as functions of Reynolds number (6,12,18-22). Equations 1,2,3. At top, 21/2 was used to convert rms to peak in Ref. 18.

Grahic Jump Location
Figure 3

Idealized spring supported damped cylinder

Grahic Jump Location
Figure 4

Added mass and drag coefficients measured in still water in comparison with theory (Eq. 11)

Grahic Jump Location
Figure 5

Measured Cdv with StU/fD compared with forced vibration test data (29,50) for 0.5<Ay/D<.6 and wake oscillator model (Eq. 24)

Grahic Jump Location
Figure 6

Drag coefficient at maximum response amplitude: present data, Ref. 19, and Refs. 29,51.

Grahic Jump Location
Figure 7

Scruton plot of resonant transverse amplitude versus reduced damping. Dark solid line is two parameter (Eqs. 20,21) solution with Tables  12 and St=0.21.

Grahic Jump Location
Figure 8

Vortex-induced cylinder response predicted by lift coefficient model (Eq. 19) with CL=0.7, and two parameter coupled model (Eqs. 20,21) using Tables  12 data in comparison with experimental data; ρD2/(2m)=0.1 and St=0.21

Grahic Jump Location
Figure 9

Comparison of predicted response amplitude (—) (Eqs. 20,21) using data from Tables  12 as a function of velocity with data from spring supported rigid cylinder tests in air (59)

Grahic Jump Location
Figure 10

Transient prediction with two parameter model (Eqs. 30,31,17) (Tables  12) and measured transient response; ρD2/m=0.2, ς=0.02. St=0.205, U/fnD=6.21




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In